Validation and diagnostic accuracy of coin rotation task for manual dexterity and coordination in children with specific learning disorder.

The present study indicated good to excellent test-retest reliability, acceptable validity, and high diagnostic accuracy for diagnosing children with SLD based on their dexterity impairment level.Implications for RehabilitationThe Coin Rotation Task (CRT) was modified and validated for use in children.The CRT is a reliable and valid tool with high diagnostic accuracy.The CRT has a good ability for discriminating children with specific learning disorder with severe dexterity impairment form typically developing children.Treatment plans and research designs can be performed by using this valid, reliable, and easy to administer tool.